Detailed Description
2.1 Spindle modes
Spindles (S1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
2-3
• Positioning mode → Oscillation mode
If the orientation of the spindle is to be terminated, M41 to M45 can be used to change to
oscillation mode. When the gear change is complete, the last programmed spindle speed
(
S
value) and M5 (control mode) are reactivated.
• Positioning mode → Axis mode
If a spindle was stopped with orientation, the assigned axis name is used to program a
change to axis mode. The gear step is retained.
• Open-loop control mode → Axis mode
Switching from open-loop control mode to axis mode can be also achieved by
programming M70. In this case, a rotating spindle is decelerated in the same way as for
M5, position control is activated and the zero parameter set is selected.
• Axis mode → Open-loop control mode
To terminate axis mode, M3, M4 or M5 can be used to change to open-loop control mode.
The last programmed spindle speed (S value) is reactivated.
• Axis mode → Oscillation mode
To terminate axis mode, M41 to M45 can be used to change to oscillation mode (only if
the programmed gear step is not the same as the actual gear step). When the gear
change is complete, the last programmed spindle speed (S value) and M5 (control mode)
are reactivated.
2.1.2 Spindle control mode
When open-loop control mode?
The spindle is in control mode with the following functions:
Constant spindle speed
S.... M3/M4/M5 and G93, G94, G95, G97, G971
Constant cutting rate
G96/G961 S.... M3/M4/M5
Constant spindle speed
S.... M3/M4/M5 and G33, G34, G35
Constant spindle speed
S.... M3/M4/M5 and G63
Preconditions
• The spindle need not be synchronized.
• No spindle position actual-value sensor required for M3/M4/M5 in connection with:
– Inverse-time feedrate coding (G93)
– Feedrate in mm/min or inch/min (G94)
– Tapping with compensating chuck (G63)
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